OK i have read/heard about burning w/ high power red lasers and burning w/ green lasers is pretty much common knowledge. does anyone here know if burning can happen w/ infra-red (invisible) lasers? i have no idea why i need to know stuff like this, but when my curiosity is piqued i just gotta find out. so if ya know the answer then also please share how much power IR lasers would need for burning. i once took apart an old laser printer thinking i might put together a nearly free pointer. at first i was bummed... i found the laser part of things, but cuold not get it to power up. i evidently left things hooked up, because later that night while fooling w/ my night vision scope i thought i saw light coming from the pile that used to be a laser printer. long story short- i had sucessfully powered it up... but it was IR. with nite vision i could see it project an IR dot for miles! unfortunatly further expirementation caused it's early demise... when i hooked it to a 9 volt battery i cooked it. still very interesting and something i will explore further(like the next time somebody pitches a broke laser printer)!